题目内容：

don't allow ____ in the meeting room ,
we don't allow ____ in the meeting room .
a.smoking b.smoke c.to smoke d.to smoking

优质解答

A
allow有两个用法：1.sb.allow doing sth.某人允许做某事
2.allow sb.to do sth.允许某人做某事
这道题适用于第一种用法,所以选A